Flushing-valve mechanism



P. HAAS FLUSHING VALVE MECHANISM Filed Jan, 27. 1927 Fb. 2s, 192s.,

2 Sheets-$het ATTORNEY Feb. 28, 1928.

Filed Jan, 2T. 1927 2 SheetS-Shet 2 f properly engage the seat.

Panarea Feb. ze; reas.

BHILIP Hans, OF DAYTON, OHIO;

KATIE Haas yANDHENRY G, BORN, an., nxnourmx ,AND EXECU'IOR OF SAID PHILIPV .H AAS,l DECEASED.

muslims-VALVE MECHANISM;

- A.appneatiun med January a7, 1927.` lserial No. 163,633. 1

' My inventionconsists in the novel featuresv hereinafter described, reference being had/toy the accompanying drawings which illustrate several embodiments of my invention selected by me for purposes of illustration, and the said invention is fully disclosed in the following description and claims. l

My'present invention is an improved flushing valve mechanism of the type in which the iushing'valvej is lighter than the amount yof lwaterV it displaces, or in other` words is what is generally referred to as a float valve to distinguish it from a valve, `the "specific gravity 'of which is greater 'than that of water. In the flushing valve mechanisms of the floatv valve' type, -in general use, the valve is provided with'a vstem which passes through a"stationary rigidf guide, usually secured to the overiow pipe in such position as, to hold the valve centered over its seatand` insure that after" av lushing operation when the valve descends, that it Such' valves are usually operated by means of a lifting 'rod connected' 'with a Vlifting lever or otherV hand operated means,l and the llifting lever is' connected with the valve stem in such y"manner as to permit the valve stem to move upwardly independently thereofpto permit theY valve to remain open by its own buoy- `a`ncy,'after the hand operated lifting means is released, until it descends upon its seat with the lowering of the water levelV in the tank. These guides frequently Wcar'outby frictionof the valve stem and corrosion, and` have to be replaced as vdo the valves also, 'and as the insertion and adjustment ofthe valve 'with respect to its guide, and the adjust-ment ofthe guide with respect to its g support, and the axis of thevalve seat must be made in situ, and the space within an ordinary flush tank .renders this most inconvenient, it is a. ditlicult mat-ter, requiring expert skill,- to replace a valve or an ordinary rigid guide in a particular tank soy as to securefthe proper operation of the valve.

This diiiicultyis increased by the fact that these partsare' not standarized, and there 1s frequently variation in thev distance between the-vertical axis of the, overiiow pipe or other fixed support for the guide, and the axis of the valveseat above which the guiding portion of the lrigid guide must vbe located. The object of my invention, lthere- )another fore, is to vprovidek a flushngvalvemechamaia;

nism which may be used as ern-Original inl stallation in a flushing tank, but is-especially useful 1nV repairing 'flushing tanks already installed and inluse, and vin its preferred'l form it comprises in conjunction'with the valve lifting meansa'njdl the flushing-'valve' seat, alushing .valve 'oftheffloat 'type Vvpro- 'vided with avalve' stem engaging'a pendu- Y lous guide, whichis preferably attached to"I .and v.suspended by `the vlifting rod Ywhichfis providedat its upper end-with means for detachablyv 'engagingf the liftingrv means'.

vmovements, byl theA pendulous guide, so that 'the valve stem is held substantially parallel lushingpipe` or discharge pipe ofthe tank,V and preferably provided ywith a 4vertically.

`disposed yring lor disc of diameter slightly4 less than that of thedischarge pipe, solas to provide roundededges for engagement with 'The flush .'valr'fe yis 'guided-ill fits vertical tending "guiding Stein loosely engaging `the u i aiY the pipe ytofprevent it from catching therein, i

'andjto substantially center theval've stem with respect to4 the valve-seat, without in- Y' Fig. l is a vertical sectionalv view'.v of aA flushing tank lprovided with' one formof flushing valve mechanism embodying my invention. i

valve stem, lifting rod, pendulous guide,

and vdepending guide showninFig. 1.

Fig. 3 is av horizontal section throughthe valve on the line 3-3'of Fig. 2, lookingv in the directiono'f the arrows in that figure.

Fig. '-4 is atop rp'lanfview' of the'pendulous guide showr'rl inV Figs. f1.. and 2.-fA

terferingwith-'the free discharge o fwater y i Fig. 2 is an enlargedvview of Ithe valve,V

Fig. ,5 is a' view'similartOF-ig.' 2,'showing a slight modilication of myr-` invention.y

Fig.'6 is a view similar to Fig. `2, sho-wing vention.`

OIH guide illustrated in 6.'

slightly modified formof my i-nf v i ,105

Y Fig. 7 is 'a'horiz'ontal section vthrough a `portion* of the combined valvejstem and bot Referring to Figs. 1 to 4 inclusive, 1, rep-` resents afliish tank of any usual or preferred construction, Vprovided with a flushing "valve seat, 2, adjacent'to the bottom, and a Hushingdischarge pipe, 3, which 'communicates with the closetbo-wl in the -usual man'- ner. The tank is also provided witha waterinlet pipe, 1, provided with a` float Hoperated valve, 5, of any usualoi desired .consti'ucf tion, Controlled by a. float lever, 6 and [io-at,

7 `The tank isv also' provided with suitable valve `lifting means of any usual orv pre y ferred construction. In this instance,Y I

have shown a vlifting lever,-8, pivotally l mounted at 9, onthe front wall of the tank, and provided' 'with the usual `operating 7 crank arm, 10, and handle, 10a, indicated in vdotted lines, butthe particular forniof the .hand operated valve lifting mechanism of the tank forms no part lof my present invenvvtion.V 11, representsA fthe flushing valve proper, which may beY ofV .any usual or desired form, whichis'lighterthan the amount of water itdisplaces, so that ,A when sube merged it will have a tendency torise when ieleasedfrom its valve seat. 'The valve is preferably made of lsoft molded' rubber, and

Y the lowei'portion thereofispreferably of taperingor Y shape, so that itwill readily seat and accommodate itself to :seats of varying diamsubstantially hemispherical eters.l I prefer to make the valve hollow with thin flexible walls indicated at `12, and a ator horizontal top indicated at 13, the

`valve ybeing provided with an opening, 14, at the bottom, sothat it will include ya bodyof air.;r and render the valve very buoyant.

The upper wall -of the valve is preferably stiffened by radial ribs or' webs, 15, preferably formed Within the valve, as shown in Figs; 2 and 3, and the central portion. of said `upper face andL preferably within the valve is provided an elongated sleeve portion, indi- VVcated at16, provided `with a central aperture,

l?, through which the valve stem, 18, errtends. The aperture, 17,'is made a little smaller than the valve stein, so as to fit it tightly and prevent any water from leaking throughV the aperture,'17,y around the valve stem int-o the interior ofthe valve. The

kvalve is alsofpreferably provided with a -downwardly.extending or bottom guide, in-

. dicated at '19, which is preferably'threaded v at its upper end-.and screwed into a connecting-sleeve o'r coupling, '20, into the upper end of whichgthe threaded lower end of the valve stem `is', also; screwed; vThis connects the bottomguide, 19, rigidlyl lwith the valve stem,.1 8,. and -thezcollar, 20, forms a positive stop'to engage the bottom of the sleeve, 16,

vofthe valve,`which is pressed down against theupper end of the connecting sleeve, 20, and prevents `any water from reaching the lscrew threaded lportion vof the valve stein and bottom guide, 19, so that these parts are not likely to become corroded, but are at all 4times kept out of contact with` thek The lower end of the bottom guide, Y

water. 19, is' provided with a vertically disposed circular device, or member, jwliich is preferably in the forni of ari-ing, 21, formed in*- l tegrally with the guide, and having a diam-V etcra little less than the diameter of the portion of the flushing. pipe, 3, intorvvhicli it projects.V The engagement between this ring, 21, (or disc), and the pipe, 3, tends `to. assist in keeping the valve' substantially coaxial with its seatwithout interfering with.

the discharge of flushing water through the pipe, 3, when the valve is open, and without any danger of binding or catching in the pipe, and the bottoin'guide, 19, is of such length that when the valve is lifted *toits highest position, the ring, 21, (or disc), will be in yengagement with the pipe, 3or the flushing aperture communicating therewith,

and will never be lifted above the valve seat.

22, represents thelifting rod, the upper end of which isprovided with an angular portion, 23, adapted to engage one or other ou of adjusting apertures, 24, in the lifting 1 lever, 8, for example, 'and secured in engage-l i nient therewith Vby a very simple retaining device, 25', wliichconsists of a short section of small rubber tube adapted to frictionally `engzgage the end of the part, 23, and hold the lifting rod and lifting lever in operative relation. against accidental displacement,

while permitting them 'to be instantlyseparated byA removing the frictional retaining device and disengaging the part,"23, fromI the lever. Thelower endof the lifting rod, Y

22, is provided with a pendul'ous guide, indi-' cated at 26, consisting in'thisinstance of ,a block of porcelain or l other non-metallic material .not affected by water, and provided with an elongated vertical 4g iiitli.np aperture,

V27, through which the valve stem, 18, loosely extends, said stem being provided above the guide with a stop, indicated at 28, which may be conveniently formed by bending lthe, upper end of the valve stein into a loop as shown, or by otherwise `providing it withV an enlargement which will not passthrough l the guiding aperture, 27. The pendulous guide is suspended by the lifting rod, 22, to which it may be secured in any desired lmanner, which will prevent it from rotating with respect to said lifting rod. I prefer to pro-l ne I sage, 30, in the porcelain blo-ck, and is bent Y' over at its upper end'to lock the block se-A curely to the lifting rod. This prevents the block from rotating on the lifting rod, which is itself held againts rotation by the engagefin parallelismV with thel lifting rod `at lalll times, While 'permitting said #valve stem to freely 'move vertically 'Within the guide, thus doing away With"the former rigid guide 'usually employed in these mechanisms. It is necessary, ho\vever, "to provide means to prevent the valvel whenI raised'fromvits seat, from vrising to 'the surface ofthewater vby swinging on the part, 23, ofthe'lifting rod, whichA would prevent it from properly Yengaging its seat' When the Water has been discharged from the tank, and this func tion is performed in this instance by the bottom guide, 19, which co-acts' with the pendulous guide, 26, in insuring to the Valve a vertical movement substantial-ly co-axial` with its seat, thus insuring the proper seating of the valve upon its seat When thefwater is discharged-from the tank and Without the necessity of adjusting the pendulous guide,`

which by reason its being' suspended` can readily .adapt itself toanyy lateral movements of vthe valve 'permittedl by the bottom guide, 19.

'n Waite understood that the non valve, 11, will be normally held seated by the pressure ofwater on itsupper face. AWhen it 1s desired Vto effecta fi'ushing-'action, the handle, 10a, 'is operated so as to cause the lifting lever tolift' the -valve foil" of its seat. `its soon as the'valve is disengaged" from lthe seat, the Water -begins to run fromv the `tank and the valve is free'to rise by its natural buoyancy, the stem, 18, sliding vertically' through the guidingI aperture, 27 in ythe `pendulous guide. hold the lifting rod inpraised position, -and -It is' not ynecessary vto it may be released as soon as the "valve is lifted. The p'endulous guide, 26, iny con-r junction Wi'th the bottom or depending guide, 19, keeps the valveV in substantially co-axi'al relation with its seat, so that as the Water level lowered, the valve descends until it engagesits seat 'and closes the flushing aperture -When the tank willl be refilled in the 'usual manner, land the vvalve Will be held in closed position. l v

vIn case it becomes necessary to install ya newl valve, it is only necessary to remove the frictional retaining device, 25, detach the arm, 23, from vtlie'lifting lever, and remove from the tank the lifting rod, the guide, 26, the valve stem, valve .and bottom guide, 19. A 'new valve can be attached to the valve stem and the parts replaced inthe same manner, Without` the necessity of reaching into Athe k'tank or makinganyadjust1nent of the non-rigid guide br other partsl of the Vap-v paratus.` lIf any adjustments :should be necessary, they canbe .mad'efo'utside' of .thev t tank. It Willl alsobe seen that anyone oit` ordinary intelligence..canrepl'ace the flushing valve in my improved construction, land that lskilled laborfort-his purpose is unnecprovedl valve mechanism can vvbek readily -inystalled inthe same Way-in any of the tanks now in use in'vvhich float' valvcsare cmployed,r by removing the fixed guide on the overflow pipeand the'prescnt valve, 'valve stem,v` and lifting rod, and substituting 'my improved vvalve L,mechanism previously` de.-` scribed. f' Y Ink Fig. 5, I have shovvn responding parts are given thegsame numerals as 1n Figs. 1 to 4, With the addition of 100, and these partsA will not be-fur-A therv described, except in'soffar as they dilier in construction from those- `previously. described. In this form o f the invention, the loWer'end of the lifting rod, 122, is pro-l vided With `a tubular member, 131vvhich in this instance is formed by'bending. a portion of the rod into a tubular coil. lfJit-hni this coil is'frictionally held avsleeve, 126, of

vCelluloid or( other non-corrodible material,

'a slightly'- modiy 'fied form of my invention, in which the corprovided With 'a longitudinalguiding aperextends. The upper end of the valve stem is provided With a stop lin the form of a loop,

1 28, adapted tol engage the upper endof the Celluloid sleeve, and'Whileit is not essentiad,

the loop, 128, is in vthis instance turnedhorizontally, and slidingly engages the ,lifting rod, 122, Whichprevents the rotationofthe' valve stem with respect to said-rod."` Tne v operation of the device is exactly the same as that previously described.v In Fig; 6, I have shown` another slight ymodification of myv invention, in which corrc5- sponding parts are given the same numerals las in F igs.- 1 to 4, lwith' theaddition of 200.

In this construction, the pendulous guide consists of sleeve, 226, ofcellul'oid or other ture, 1.27, through Which the valve stem, 118, f

non-corrodible material, provided atene side with a slot, 226g. 'Ihelifting rod, 22, is'fsecured to `the upper Yend of; thesleeve in any desired Way,v as by lforming av 'loop' at its'A lower end to engage' the upper endlof the slot, and the valve stem, 218, extends through the lower end of' this sleeve', l226, Within the guiding aperture, l227, therein, and has its upper end bent outwardly, Aas at 12181,' and engaging4 the slot, '226% so fas` "tol guide the valve in its vertical n'iovement-s, and kprevent it from yrotating with'respect to 'the' sleeve and the lifting'rod. In this instance, I have `shown the depending or bottom guide, '219,

vand provided with a flattened portion, indicated at. 2,20,v vvl'iich engages `a metallic formed inonevpiece with the valve-stem, 218,

Washer, 220, against whiclii'heloiver endo the rubber sleeve, Q16, Within the valvecngages, thus holding thevalve frein downward movement with respect to the valve stemy and bottom guide Without .the use of 4 screw threaded parts, v(see Fig'. 7 llhe 'Y' laterally operation of the forni shown in Figs. G and V' is the same as that previously described.

It will be seen that in all of the forms ofl my invention herein shown and described,` a vpendulous @finden suspended midsupported .5 b the ii"tino-v rod so that it t' move 2'! to accommodate slight lateral i movements ot the valve, and therefore this frguide is selffadiustin Y .with respect to the valve, and Will permit the valve to seat properly at all times' without bii'iding` of the valvestein'theieiii, vivhile holding` the vvalve A stein'fin parallelismwith'the lifl no likelihood ofthe valve st its seat.

stem in parallelism with the 'lifting rod. It willv Valso be seen that the i,'aendulous `guide :is preferably formed-of non-metallio material, as porcelain, Celluloid, etc which not eorrodible bywvater, and therefor therevvillbe in sti-clung' with respect to the pendulous guide. 'It will ,be

understood that it it were attempted to suslous nevertheless by its WeighttendsA to hang;`

verticallyend to retain the valvesteni in parallelism with tlie'hfting' rod and prevents the jack-hintingresult which would othern Wise occur, and the depending rod or guide belowpthe valve, so located that it may not be Withdrawn aboife'thevalve seat in the high'- est position of the valve, further prevents the valve from svvingine` oni/he pivotal connecty nion between the lifting;P rod and lifting' lever out of alignment with its seat, said guides co-opera,ngl with cach otherin iiiaintaining` the valve at all times,substantially co-aial .with its seat, While by my, invention the entire-valve, guides, and lifting' rod' can be instantly removed from the tank for the replacement of the valve and iefinserted inr operative position Withoutthe necessity of skilled labor, and Without thenecessity of adjusting the. guide either within or Without the tank.VV i f y In some` instances Vthe bottom guide may be omitted,1as Where thevpcndulous efuiee is made sufficiently heavy so that Vit will by its gravity maintain the lifting` rod at all times in a vertical position, and this is desirable in some cases as the omission of the bottom charge pipe, as :it prevents the possibility lof It will be notedthat in guide urelieves the valveofal certaink amount of weight and makes it more buoyant. In such case the engagement efythey valve stem vin the guiding aperture-.in the guide-Will also maintain-theI-valve-stem vertical, and 'the 7e valve substantially -co-axial with the, valve@ seat; I prefer, however, to lemploy the loiver guide as shown, loosely 'engagingfthegdisthe r4valve movingmaterially out of, co-AaXi'al relation with seat,'and ,permits thel useA of a guide oflighter iveipglitn 1' fl'fris @any invention, vthefstem of? A the 'float `valve free torotatefvvithin the '-penduloiis guide,

vsothat the. valve'is free torotate insea'ting' and. under l thev action 0f, :the Water' in ther tank.l This facilitates the seatmgiiof the valvev i and increases itsl durability, asftlie saine portions `its'surface7 do notjco1itinually engage the identical portions of the seat, and the valve is given 4Vgreater freedom from rotation' 1vith respect toitls'guiding` means.-

VhatI clap-im and desire to secure Letters Patent isz#` v l. In aflushingvalve.inechanisinfor a iiush tanlrprovided With a Vflushing valve seatfandvalve liftingfmeans, the Vcombina? y tion y,with a flushing float valve provided 9 5 with a vertical stem, of a guidehaving. an elongated guiding `passage therethrough, a lifting rod provided atits` upper endnith `means for suspendingit from thevalve lifting means, and hzvivingv its lowerfend coniiectedfwith said guide' so as toV support the guide pendulously,fwith guiding passage; vertical, said valve stem Yextendingloosely through said gguidirngfpassage,A and being;` provided above the same ATvith astopgto perma' vmit of lifting,` thev valvefromfits seat, the

Weight of said guide tending ftoholdfthe valve `when unseated, inl substantially coaxial relation ivith its seat While permittingsuili Y cient freedom of movement o fthe valve to lie Yfacilitate its seating.

2. In aJv ushing Vvalve,*'mvechanisinvr for a flush 'tank provided with ar flushing;v valve seat and valve liftingmeans, thecombination with a flushing float valve provided 1i5 with. a vertical stem,`of a guidefliaving anr relongated guiding passage therethrough, y

a lifting rod Yprovided at its uppeivend with means forsuspending it from the valve lifting means, and having its loiver'eiid con- 120 nected With said guide so astey support the Vguide pendulously, With'its guiding'passage vertical, said valve steinextending loosely through said guiding,` passage, and being' freely rotatable therein, said stein," being provided above thesame with a` guiding stop to permit oflifting the valver from its seat, the weightof said guide tending to hold the valve when unseated in snbsta'ny vtial coaxial relation with its seat While per i3@ mittin'g sufficient freedom of movement ofr4 thevalve 4with respect to its seat,'to facili` tateitsseating. `1 f Y l' 3. In a flushing; valve mechanism for a.

flush ,tank.provided'with a flushing valve seat and valve lifting means, :the combination with a flushing float valve provided with a vertical'stem, of' a guide having an elongated guiding 'passage' therethrough, ai lifting rod-provided at its upper end with means for suspending it from the valve lifting means, and having its .lower end connected with said guideso as to support the 'guide pendulously, with its guiding passage vertical, said valve stem 'extending loosely through said guiding passage, and lbeing provided above lthe same with a stop to permit of Alifting the Yvalve from its seat,

the weight of said guide tending to-liold the valve, when unseated, in substantial coaxial.

relation with its seat, while permitting suff cient freedom of movement of the valve to facilitate'its seating, said 4valve being. provided with a depending guide extending loosely through `the seat andiof suflicient lengthv to prevent it from being withdrawn from the seat when! the valve is fully lifted, to positively prevent the valve from being accidentally moved laterallyout of operative relation with its ,seat-Q 4. In a flushing valve' mechanism for a -Iflush tank, provided with a flushing valve vided with an eccentrically located elongated guiding passage, .said block being connected with the lower end of the lifting rod coaxially therewith so as to hold said guiding passage vertically andk in substantial coaxial relation with the Valve seat, means for preventing the rotation of said block, said valve stem extending loosel through said guiding passage in .said b ook and being provided with a stop above the same, to engage the upper surface of the block and permit of lifting the valve from its seat, the weight of said block tending tohold the valve, when unseated, insubstantially coaxial relation with its seatwhile permitting sufficient freedom of movement of the valve to facilitate its seating.

5. In flushing valve mechanism for a iiush tank, provided with a flushing valveseat, andv endv with means for suspending it from the valve lifting means, and vpreventing its rotation with respect thereto, a pendulous guide secured to the lower end of said lifting `rod and h eld from rotation Awith respectV thereto,`said guide 'comprising apblock vprovided with an elongatedyertical passage substantially coaxial with the'valve seat,VA said valve stemy extending loosely through.`

said guiding .passage and being provided abovetheVV saine with a stop to engage theupper lsurface of ythe block for lifting the valve from its; seat, the weight of said guide tending to. hold the valve, when unseated, in substantially coaxial relation with its seat, while permitting'suiiicient freedom of move# ment ofthe valve to facilitate itsseating.

6. In a flushing Avalve mechanism for a flush tank, providedwith'a' flushing valve seat, and valve lifting means, the combination with a flushing 'loat valve provided with a `vertical stein, of a lifting rod, provided at its upper end with means for suspending it' from the valve lifting means, and preventingits rotation with respect thereto, a pendulous guide Acomprising a` block havin g a centrally" located vertical. aperture therethroughfto receive thelower end ofthe lifting rod,fsaidv block and lifting rod being provided with co-opeiatingfnieans for preventing the rotation ofthe block with respectvto the liftingv rod, 'and said block being provided with avertically disposed elongated. guiding passage coaxial with the valve stem when inv seated position, said valvestem engaging and beingprovided with an enlargement .95 f said guidingpassage loosely and revolublyf. Y

above said block to engage the valve tofbeV Y lifted, the weight of said guide tending .to

hold the valve, when unseated, in substantial` coaxial relation with its seat while perf4 initting sufficient lfreedoin'of movement of i the valve to facilitate its seating.v

7. ln a flushing valve mechanismfor a f iush tank, provided-with a. flushing valve seat, and valve lifting n'ieans,` the combination with a flushing float valve provided A with a vertical stem, of a lifting rod, pro-l vided atits upper end with lmeans for sus-V 1 pending it from the valve lifting means,`and

preventing its rotation with respectr thereto,

a pendulous guide comprising a block of l non-corrodible material 'provided with a central vertical passage to receive the lower end' of the lifting rod, and 'vertically guiding passages on opposite sides of said een:k

tral passage, said lifting rod being provided with anupwardly extending part engaging i one of Vsaid guiding passages to'prevent the rotation of the block withV respect to the lifting rodthe valvey stein extending loosely' and4 revolubly through the other of said guiding passages andbeing provided with an enlargement above saidblock to enable the valve to be lifted from its'seat the weight of said guide tending to hold the valve, when unseated, in substantially ycoaxial relation with` its seatwhilejperinitting suiiicient freedom of movement of the valve to facilitate its seating.

8. In `a flushingval've mechanism for a` flush tank, provided with a flushing valve seat, and valve lifting means, the combinationwith a 4flushing float valve provided with la vertical stem, oi-a lifting rod, provided at its upper end with means vfor sus e Africtionally engaging'the valvevstem, said 4valve stem Vbeing provided with a threaded portion below said aperture `and a threaded collar detachably engaging the valve stem, to preventY the downward movement `of the valve thereon, and being enclosed Within the interior of the valve. Y

v9. In ailushing valve mechanism for a vflush tank, provided vith a flushing valve,

' seat, and valve liiting means,`the combina-k tion wi th a iushing loat valve provided with a@ vertical stem, of a lifting rod, provided at its upperv end with means fory suspending it from the valve lifting means, apendulous guide consistingof' a: blockjsecured to the lower end oit the lifting vrod andfprovided withV a vertically disposed elongatedguiding passage loosely engaging the valve stem, said valve stem having an enlargement above said bleek, the said iioat valve being hollow and open at its lower end, and composed of rubber, and being provided at its upper end vwith aqvertical aperture frictionally engaging the valve stem, said valvevstem being provided with a threaded portion below said aperture and a ,threadedV collar detachably engaging the valve stem, 'to prevent `the y' downward movement o'l the valve thereon, and-being enclosed within the interior ofthe valve, and a depending guide yrod having a threaded portion at its upper end, screwed into said collar and extending through the valve seat to prevent the possibility of the valve from being moved out of operative relation with the seat. 1 1 f In testimony `whereof I ailiX my signature.

PHILIPHAAs; 

